diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index ab3f3040..001895f2 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -63,6 +63,9 @@ class OnWorkerStart extends Callback
 				return $server->stop($workerId);
 			}
 			while ($server->stats()['coroutine_num'] > 0) {
+
+				var_dump($server->stats()['coroutine_num']);
+
 				Coroutine::sleep(0.01);
 			}
 			return $server->stop($workerId);